package com.itguigu.glimail.seckill.scheduled;

import com.itguigu.glimail.seckill.service.SeckillService;
import lombok.extern.slf4j.Slf4j;
import org.redisson.api.RLock;
import org.redisson.api.RedissonClient;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.scheduling.annotation.Async;
import org.springframework.scheduling.annotation.EnableScheduling;
import org.springframework.scheduling.annotation.Scheduled;
import org.springframework.stereotype.Component;

import java.util.concurrent.TimeUnit;

/**
 * 秒杀商品定时上架
 * 每晚三点,上架最近三天需要秒杀的商品
 */
@Slf4j
@Component
public class SeckillSkuSchedule {
    @Autowired
    SeckillService seckillService;
    @Autowired
    RedissonClient redissonClient;
    private final String upload_lock = "seckill:upload:lock";

    //   cron = "0 0 3 * * ?"
    @Async
    @Scheduled(cron = "0 * * * * ?")
    public void uploadSeckillSkuLatest3Days() throws InterruptedException {
        //TODO 重复上架无需处理
        //分布式锁
        log.info("上架秒杀的商品信息");
        RLock lock = redissonClient.getLock(upload_lock);
        lock.lock(10, TimeUnit.SECONDS);

        try {
            seckillService.uploadSeckillSkuLatest3Days();
        } finally {
            lock.unlock();
        }

    }
}
